Less than a third — 31.4 percent — of all registered voters cast ballots in the Nov. 5 municipal elections in Connecticut, though some communities were far more active than others, according to turnout figures released Tuesday by Secretary of the State Denise Merrill. Here’s a look at how towns in Eastern Connecticut fared.

Top light: Only one town in the region — Sprague, at 53.2 percent — cracked the top 20, putting it fifth highest in the state behind Cornwall, Sharon, Warren and top performing Bridgewater (77.3 percent). Bozrah ‘s 45.9 percent turnout put it in the top 25 statewide.

Bottom heavy: Merrill’s office reported that 13 municipalities failed to eclipse 20 percent voter turnout. Three of the towns with the state’s 10 lowest turnouts are local: Plainfield (12.3 percent), Killingly (17.7) and Woodstock (18.6). Voluntown just missed out on joining that list, with just 19.8 percent of people voting. The lowest turnout in Connecticut was in Hartford (5.2 percent).

No contest? No matter: Four towns — Franklin, Salem, Plainfield and Woodstock — had uncontested races at the top of the ticket for first selectman. Despite that, voters in Franklin and Salem turned out at rates above the state average to vote: 36.8 percent in Salem and 33.3 percent in Franklin. Plainfield and Woodstock voters were far below that.

Sonia Chapman, Plainfield’s Republican registrar of voters, said not only was First Selectman Paul Sweet running unopposed, but so was every other candidate on the ballot — explaining why turnout was so low there. “I was expecting a low turnout because every race was unopposed and there was nothing else on the ballot,” she said.

The grand experiment: For the first time, people could register to vote on Election Day. Across Connecticut, more than 1,580 residents took advantage of the opportunity. Officials and local registrars expect that figure to spike next year, when the governor’s race leads the ticket. Locally, only eight towns saw any Election Day Registration activity. The most was in Norwich, with 23 people. Ledyard and Sprague had 12, Colchester had 10, Thompson had 8, Lebanon had 6, Lisbon had 5 and Pomfret had 4.